Matching Tag: covering-groups
Derivative conjecture. The representation ρ 1 ( τ ) \rho_1(\tau) ρ 1 ( τ ) is ( r k , 1 ) (rk,1) ( r k , 1 ) . If F F F is non-archimedean, then for every c > 1 c>1 c > 1 the highest derivative of ρ c ( τ ) \rho_c(\tau) ρ c ( τ ) is
Let G G G be a reductive group over a local field F F F , and let G ‾ ( n ) \overline{G}^{(n)} G ( n ) be a Brylinski–Deligne cover of G G G . Write Irr g e n ( G ‾ ( n ) ) \operatorname{Irr}_{\rm gen}(\overline{G}^{(n)}) Irr gen ( G ( n ) ) for…
Let G G G be the underlying group, let Basic G \textnormal{\textsf{Basic}}_G Basic G be the set of basic data, and for each β ∈ Basic G \beta\in\textnormal{\textsf{Basic}}_G β ∈ Basic G let G ~ β \widetilde G_\beta G β be the…
Let F F F be the local field and let G ~ \widetilde G G be the cover under consideration, with associated dual group data H ~ \widetilde H H . Write Π ( G ~ ) \Pi(\widetilde G) Π ( G ) for the relevant set o…
Maximal Whittaker-orbit conjecture. One has O r , n ⩽ O \mathcal{O}^{r,n}\leqslant\mathcal{O} O r , n ⩽ O for every O ∈ N W h max ( π ) \mathcal{O}\in\mathcal{N}_{\rm Wh}^{\rm \max}(\pi) O ∈ N Wh m a x ( π ) .
Let G ‾ \overline{G} G be a covering group with subgroup G ‾ 0 \overline{G}_0 G 0 , let G ‾ † = Z ( G ) ‾ ⋅ G ‾ 0 \overline{G}^\dag=\overline{Z(G)}\cdot\overline{G}_0 G † = Z ( G ) ⋅ G 0 , and let ϕ π \phi_\pi ϕ π be an L L L -parameter of…
Let G G G be a group, and let σ n ( G ) \sigma_n(G) σ n ( G ) denote its normalizer covering number, the least number of proper normalizers whose union is G G G , when such a covering exists. Normalizer…
Intertwining-operator conjecture. For all 1 < l ≤ r 1<l\leq r 1 < l ≤ r , M ( ζ , w ( k l ) ) M(\zeta,w_{(k^{l})}) M ( ζ , w ( k l ) ) is well defined at ζ = ζ ( l ) \zeta=\zeta^{(l)} ζ = ζ ( l ) and has irreducible image. For all c ≥ 1 c\geq1 c ≥ 1 ,…
Let G ‾ \overline{G} G be an n n n -fold persistent covering group. Let Θ ( G ‾ , χ ) = π Γ − \Theta(\overline{G},\chi)=\pi_{\Gamma^-} Θ ( G , χ ) = π Γ − be the theta representation associated to an unramified character χ \chi χ …
Let F F F be the relevant number field, let ν \nu ν be a place of F F F , and let τ ν \tau_\nu τ ν be the local representation used to form the induced representations. For l ≥ 2 l\geq 2 l ≥ 2 , write…
Let ( GL ~ r ( n ) , GL ~ R ( n ) ) (\widetilde{\operatorname{GL}}_r^{(n)},\widetilde{\operatorname{GL}}_R^{(n)}) ( GL r ( n ) , GL R ( n ) ) be a fundamental pair with n ∣ ( p ⋅ n α ) n\mid(\mathbf{p}\cdot n_\alpha) n ∣ ( p ⋅ n α ) . Let…
Let G G G be a group with finite covering number … sigma(G)i s t h e s m a l l e s t n u m b e r o f p r o p e r s u b g r o u p s n e e d e d t o c o v e r is the smallest number of proper subgroups needed to cover i s t h es ma l l es t n u mb er o f p r o p er s u b g r o u p s n ee d e d t oco v er G. C a l l . Call . C a l l G∗ ∗ … ** … ∗ ∗ … sigma(G)<σ ( G / N ) … σ \sigma(G/N) … \sigma σ ( G / N ) … σ -elementary g…